US7661861B2ActiveUtilityA1

Vehicle headlamp

58
Assignee: ICHIKOH INDUSTRIES LTDPriority: Aug 10, 2006Filed: Aug 6, 2007Granted: Feb 16, 2010
Est. expiryAug 10, 2026(~0.1 yrs left)· nominal 20-yr term from priority
Inventors:Yasufumi Suzuki
F21S 41/172F21S 41/683F21S 41/43
58
PatentIndex Score
1
Cited by
4
References
6
Claims

Abstract

A vehicle headlamp includes a shade having a diagonal edge, an upper horizontal edge, and a lower horizontal edge. The intersection of the diagonal edge and the upper horizontal edge is horizontally deviated from a first reference position, i.e., an elbow point of a conventional shade, or a vertical reference axis to an opposite side with respect to the intersection of the diagonal edge and the lower horizontal edge.

Claims

exact text as granted — not AI-modified
1. A vehicle headlamp for illuminating front of a vehicle with light in a light-distribution pattern, the vehicle headlamp comprising:
 a light source; 
 a reflector that reflects light from the light source; 
 a projection lens that projects reflected light from the reflector; and 
 a shade that blocks part of the reflected light directed toward the projection lens from the reflector to form the light-distribution pattern having cut-off lines, wherein 
 the cut-off lines are formed based on a vertical reference axis and a horizontal reference axis, and include a diagonal cut-off line, a first horizontal cut-off line extending horizontally from a first end of the diagonal cut-off line, and a second horizontal cut-off line extending horizontally from a second end of the diagonal cut-off line, 
 the shade includes a diagonal edge that forms the diagonal cut-off line, a second horizontal edge that forms the first horizontal cut-off line, and a first horizontal edge that forms the second horizontal cut-off line, and 
 a first intersection, which is an intersection of the diagonal edge and the first horizontal edge, is horizontally deviated from a first reference position, which is located on the vertical reference axis, in a direction opposite to a second intersection, which is an intersection of the diagonal edge and the second horizontal edge. 
 
     
     
       2. The vehicle headlamp according to  claim 1 , wherein the diagonal edge is inclined at an angle less than an angle at which a reference diagonal edge is inclined, the reference diagonal edge being obtained when the first intersection is located at the first reference position, and the second intersection is located at a second reference position, the second reference position being located on the horizontal reference axis and off the vertical reference axis in a direction opposite to the first intersection. 
     
     
       3. The vehicle headlamp according to  claim 1 , wherein the second intersection is horizontally deviated from the second reference position up to, at maximum, the vertical reference axis in a direction in which the first intersection is deviated from the first reference position. 
     
     
       4. The vehicle headlamp according to  claim 1 , wherein the diagonal edge and the first horizontal edge intersect at an obtuse angle. 
     
     
       5. The vehicle headlamp according to  claim 1 , wherein the diagonal edge and the second horizontal edge intersect at an obtuse angle. 
     
     
       6. The vehicle headlamp according to  claim 1 , wherein the first intersection is curved.

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